function contact_over(folder){
        document.getElementById('contact_img').src = "img/contact/"+ folder + "/contact-but-over.jpg";
}
function contact_out(folder){
        document.getElementById('contact_img').src = "img/contact/"+ folder + "/contact-but.jpg";
}
function blurEvent(obj,id,type){
        try{
                if(type!='date'){
                        if(obj.value!=''){
                                document.getElementById(id).style.display = 'none';
                        }
                        else {
                                document.getElementById(id).style.display = '';
                        }
                }
                else{
                        var day = document.getElementById('day').value;
                        var month = document.getElementById('month').value;
                        var year = document.getElementById('year').value;
                        if(day!='' && month != '' && year != ''){
                                document.getElementById(id).style.display = 'none';
                        }
                        else {
                                document.getElementById(id).style.display = '';
                        }
                }
        }
        catch(e){}
}
function displayOrder(obj){        
        if(obj.value == '_UNKNOWN'){
                document.getElementById('gameid').value = '';
        }
        else {
                document.getElementById('gameid').value =  obj.value;
        }
}
function checkComplain(){
        try{
                var arrId = new Array('customername', 'day', 'month', 'year', 'slgameid', 'customeremail', 'handsetid', 'msisdn', 'countryid', 'operatorid', 'operatorid_other', 'note');                
                for(var i = 0; i < arrId.length ; i++){
                        if(document.getElementById(arrId[i]) != null && document.getElementById(arrId[i]).value==''){
                            if(arrId[i] == 'operatorid' && document.getElementById(arrId[i]).options.length <= 0) continue;
                                //alert('please input all fields!');
                                document.getElementById(arrId[i]).focus();
                                document.getElementById('errormsg').style.display = '';
                                return false;
                        }
                        else {
                                if(arrId[i]=='customeremail'){
                                        if(!validEmail(document.getElementById(arrId[i]).value)){
                                                //alert("please input a valid email !");
                                                document.getElementById(arrId[i]).focus();
                                                return false;
                                        }
                                }
                                if(arrId[i]=='msisdn')    {
                                        if(!validNumber(document.getElementById(arrId[i]).value)){
                                                //alert("please input a valid number !");
                                                document.getElementById(arrId[i]).focus();
                                                return false;
                                        }
                                }
                        }                    
                }
                document.getElementById('errormsg').style.display = 'none';
                return true;
        }
        catch(e){}
}

function validNumber(number){
        var emailReg = /^[0-9]+$/;
        return emailReg.test(number);
}

function validEmail(email){
        var emailReg = /^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/;
        return emailReg.test(email);
}